diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/touchscreen/fujitsu_ts.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/input/touchscreen/fujitsu_ts.c | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/ANDROID_3.4.5/drivers/input/touchscreen/fujitsu_ts.c b/ANDROID_3.4.5/drivers/input/touchscreen/fujitsu_ts.c deleted file mode 100644 index 80b21800..00000000 --- a/ANDROID_3.4.5/drivers/input/touchscreen/fujitsu_ts.c +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Fujitsu serial touchscreen driver - * - * Copyright (c) Dmitry Torokhov <dtor@mail.ru> - */ - -/* - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - */ - -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/input.h> -#include <linux/serio.h> -#include <linux/init.h> - -#define DRIVER_DESC "Fujitsu serial touchscreen driver" - -MODULE_AUTHOR("Dmitry Torokhov <dtor@mail.ru>"); -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_LICENSE("GPL"); - -#define FUJITSU_LENGTH 5 - -/* - * Per-touchscreen data. - */ -struct fujitsu { - struct input_dev *dev; - struct serio *serio; - int idx; - unsigned char data[FUJITSU_LENGTH]; - char phys[32]; -}; - -/* - * Decode serial data (5 bytes per packet) - * First byte - * 1 C 0 0 R S S S - * Where C is 1 while in calibration mode (which we don't use) - * R is 1 when no coordinate corection was done. - * S are button state - */ -static irqreturn_t fujitsu_interrupt(struct serio *serio, - unsigned char data, unsigned int flags) -{ - struct fujitsu *fujitsu = serio_get_drvdata(serio); - struct input_dev *dev = fujitsu->dev; - - if (fujitsu->idx == 0) { - /* resync skip until start of frame */ - if ((data & 0xf0) != 0x80) - return IRQ_HANDLED; - } else { - /* resync skip garbage */ - if (data & 0x80) { - fujitsu->idx = 0; - return IRQ_HANDLED; - } - } - - fujitsu->data[fujitsu->idx++] = data; - if (fujitsu->idx == FUJITSU_LENGTH) { - input_report_abs(dev, ABS_X, - (fujitsu->data[2] << 7) | fujitsu->data[1]); - input_report_abs(dev, ABS_Y, - (fujitsu->data[4] << 7) | fujitsu->data[3]); - input_report_key(dev, BTN_TOUCH, - (fujitsu->data[0] & 0x03) != 2); - input_sync(dev); - fujitsu->idx = 0; - } - - return IRQ_HANDLED; -} - -/* - * fujitsu_disconnect() is the opposite of fujitsu_connect() - */ -static void fujitsu_disconnect(struct serio *serio) -{ - struct fujitsu *fujitsu = serio_get_drvdata(serio); - - input_get_device(fujitsu->dev); - input_unregister_device(fujitsu->dev); - serio_close(serio); - serio_set_drvdata(serio, NULL); - input_put_device(fujitsu->dev); - kfree(fujitsu); -} - -/* - * fujitsu_connect() is the routine that is called when someone adds a - * new serio device that supports the Fujitsu protocol and registers it - * as input device. - */ -static int fujitsu_connect(struct serio *serio, struct serio_driver *drv) -{ - struct fujitsu *fujitsu; - struct input_dev *input_dev; - int err; - - fujitsu = kzalloc(sizeof(struct fujitsu), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!fujitsu || !input_dev) { - err = -ENOMEM; - goto fail1; - } - - fujitsu->serio = serio; - fujitsu->dev = input_dev; - snprintf(fujitsu->phys, sizeof(fujitsu->phys), - "%s/input0", serio->phys); - - input_dev->name = "Fujitsu Serial Touchscreen"; - input_dev->phys = fujitsu->phys; - input_dev->id.bustype = BUS_RS232; - input_dev->id.vendor = SERIO_FUJITSU; - input_dev->id.product = 0; - input_dev->id.version = 0x0100; - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); - input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - - input_set_abs_params(input_dev, ABS_X, 0, 4096, 0, 0); - input_set_abs_params(input_dev, ABS_Y, 0, 4096, 0, 0); - serio_set_drvdata(serio, fujitsu); - - err = serio_open(serio, drv); - if (err) - goto fail2; - - err = input_register_device(fujitsu->dev); - if (err) - goto fail3; - - return 0; - - fail3: - serio_close(serio); - fail2: - serio_set_drvdata(serio, NULL); - fail1: - input_free_device(input_dev); - kfree(fujitsu); - return err; -} - -/* - * The serio driver structure. - */ -static struct serio_device_id fujitsu_serio_ids[] = { - { - .type = SERIO_RS232, - .proto = SERIO_FUJITSU, - .id = SERIO_ANY, - .extra = SERIO_ANY, - }, - { 0 } -}; - -MODULE_DEVICE_TABLE(serio, fujitsu_serio_ids); - -static struct serio_driver fujitsu_drv = { - .driver = { - .name = "fujitsu_ts", - }, - .description = DRIVER_DESC, - .id_table = fujitsu_serio_ids, - .interrupt = fujitsu_interrupt, - .connect = fujitsu_connect, - .disconnect = fujitsu_disconnect, -}; - -static int __init fujitsu_init(void) -{ - return serio_register_driver(&fujitsu_drv); -} - -static void __exit fujitsu_exit(void) -{ - serio_unregister_driver(&fujitsu_drv); -} - -module_init(fujitsu_init); -module_exit(fujitsu_exit); |